butterfly.vectormath module

Calculate anitclockwise angle between two vectors.

butterfly.vectormath.angle_anitclockwise(v1, v2)

Calculate clockwise angle between two 2D vectors.

butterfly.vectormath.cross_product(v1, v2, norm=True)

Calculate cross product of two 3d vector.

butterfly.vectormath.project(p, o, n)

Project a point3d on a plane.

Parameters:

• p – Point.
• o – Origin of plane.
• n – Plane normal.

Returns:

projected point as (x, y, z)